Accounting system



March 17, 1936.

H. G. JOHNSTQNE ACCOUNTING SYSTEM Filed Now-17, 1932 ll Sheets-Sheet 1 March 17, 1936- H. e. JOHNSTONE 2,034,260

ACCOUNTING SYSTEM Filed Nov. 17, 1932 11 Sheets-Sheet 2 A TTOII'WEV March 17, 1936. H. JOHNSTONE ACCOUNTING SYSTEM 11 Sheets-Sheet 3 Filed Nov. 17, 1952 March 17, 1936. 'H. e. JOHNSTONE ACCOUNTING SYSTEM Filed Nov. 1'7, 1932 ll Sheets-Sheet 4 lNVE/VTOR .7 1 6: JOHNSTOME March 17, 1936. Q JQHNSTQNE 2,034,260

ACCOUNTING SXSTEM Filed Nov. 17, 1932 ll Sheets-Sheet 5 m mvm/r A! 65 JO/l/VSTU/VE ATTORNEY March 17, 1936. H. e. JOHNSTONE 3 ACCOUNTING SYSTEM Filed Nov. 17, 1952 11 Sheets-Sheet 6 A 7707MB March .17, 1936.

H. G. JOHNSTONE ACCOUNTING SYSTEM Filed Nov. 1'7, 1932 ll Sheets-Sheet 7 Nmw A TTOR/VFY March 17, 1936- H. s. JOHNSTONE ACCOUNTING SYSTEM Filed Nov. 17, 1952 -ll SheetsSheet 8 NmQ ATTORNEY March 17, 1936. JQHNSTONE 2,034,260

ACCOUNTING SYSTEM Filed Nov.. 17, 1932 11 Sheets-Shet 9 A TTORNE) Ma arch 17, 1936. H. e. JOHNSTONE ACCOUNTINGSYS'I'EM Filed Nov. 17, 1952 1'1 Shtjs-Sheet 1o IIVVEWTO/P A. 6. JOHNSTON? BY 1+4- 41M ATfOfi/VEY -March 17, 1936.

H. G. JOHNSTONE 2,034,260

ACCOUNTING SXSTEM Filed Nov. 17, 1932 ll Sheets-Sheet ll INVENTOR Br 141m ATTORNEY 6: JO/M STOA'E Patented Mar. 17, 1936f umr-Eo STATES cocoons-ms SYSTEM Harold G. Johnstone, @hlcago, 111., assignor to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application November 17, 1932, Serial No. 643,018

4 Claims. (Cl. 235-92) This invention relates to accountingsystems, and more particularly to record comparing mechanisms for accounting systems.

It is an object of the invention to provide an apparatus for automatically and rapidly comparing records.

In accordance with one embodiment the invention contemplates the provision in an accounting system of apparatus for searching through a. file of records to find a record representing a classification corresponding to a classification. in which a transaction hasoccurred and controlling the feeding of cards to institute an accounting and card preparing operation automatically upon the finding of said record in the record file thereby to correct the record file by replacing the superseded record.

Other objects and advantages of the invention will be apparent by reference to the following specification when taken in conjunction with the accompanying drawings, wherein Fig. 1 is a fragmentary plan view of that portion of the machine which handles the file cards;

Fig. 2 is a plan view of that portion of the machine which handles the item cards and should be placed below Fig. 1 to form a complete plan view of the item and file card sensing mechanisms in their respective positions;

Fig. 3 is an enlarged sectional view taken along the line 3--3 of Fig. 1 in the direction of the arrows showing the structure of the register mechanism;

Fig. 4 is an enlarged fragmentary sectional view taken along the line 44 of Fig. l in the direction of the arrows showing the structural features of the file sensing station;

Fig. 5 is an enlarged fragmentary sectional view taken substantially along the line 5-5 of Fig. l in the direction of the arrows showing the file card perforating mechanism and when placed to the right of Fig. 4 will, in conjunction with Fig. 4, show a complete vertical sectional view through the upper portion of the mechanism for sensing the file cards and perforating new file cards;

Fig. 6 is an end elevational view of the item card sensing mechanism taken along the line 6-6 of Fig. 2 in the direction of the arrows;

Fig. 7 is a vertical sectional view taken substantially along the line l--'i of Fig. 2 in'the direction of the arrows, and shows the details of the structure of the item sensing station;

Fig. 8 is a vertical sectionalview taken along the line 88 of Fig. 5 in the direction of the arrows;

Fig. 9 is a vertical sectional view-taken along taken. along lines 16-!5 and i'I--il of the line 9-9 of arrows;

Fig. 10 is a sectional view taken along the line ilk-it of Fig. 3 in the direction of the arrows showing the details of construction of the regis- 5 ter mechanism;

Fig. 11 is a fragmentary vertical sectional view taken along the line i l-l I of Fig. l in the direction of the arrows showing in detail'the cams for operating the perforating mechanism;

Fig. 12 is a fragmentary sectional view taken along the line l2--i2 of Fig. 8 in the direction of the arrows showing the details of construction of a portion of the perforating mechanism;

Figs. 13 and 14 are circuit diagrams which, 15 when .viewed collectively with Fig. 13, placed above Fig. 14 disclose the electrical connections for controlling the operation of the various parts of the system in accordance with the preferred embodiment of the invention;

Fig. 15 is a fragmentary sectional View taken on the line i5i5 of Fig. 1- in the direction of the arrows, and

Figs. 16 and 17 are fragmentary sectional views Fig. 3 in Fig. 4 m the direction of the the direction of the arrows.

In general the mechanism for keeping a constant inventory of stock on hand in a large industrial or commercial institution where a. file containing statistical cards is kept having a card therein representing each type of apparatus or raw material carried by the concern forms the subject matter of this specific disclosure. As is usual in accounting systems where statistical record cards are used, each type of apparatus is assigned a separate piece number and the card assigned to a certain type of material or article has perforated thereon information representing the number of parts or articles of that particular type on hand. Whenever a withdrawal or addition is made to a supply of a certain type of article I or material, a. card is prepared having perforated therein information representing the type of material withdrawn or' added together with the quantity withdrawn or added. These cards are sent to the accounting organization wherein the file cards are stored and a. new file card prepared after which the superseded file card may be destroyed and the card representing the withdrawal from or additions to stock, which will-hereafter be called the item card, may be stored for future reference or may be destroyed and the filewill represent the condition of the stock at the time the new file cards are prepared.

In order to accomplish automatically this stockkeeping or posting operation, the file cards are sortedinto numerical order with reference to the stock or type identifying number, and the item cards representing stock additions or withdrawals are also sorted into numerical order with reference to the stock or type number and the file and item cards are deposited in separate magazines from which they are withdrawn one at a time to sensing stations where they are electrlcally compared in the following manner: The machine draws an item card into the item sensing station and draws a plurality of the file cards into and through the file sensing station until a file card is found which'bears a stock number corresponding to the stock number on the item card whereupon the file card is held in the sensing station and succeeding item cards are withdrawn from their magazine through the item sensing station as long as they bear the same stock number as that inscribed on the file card being held in the file sensingstationh As each item card passes out of the sensing station, it adds algebraically upon a register the quantity of the stock movement (addition or withdrawal) as indicated by perforations in an area of the item cards which is different from the area bearing the stock number and then the cards are directed to an item card receptacle.

When an item card is withdrawn from the magazine which. does not agree with the file card held in-the file sensing station, the file card which has been held in the sensing station passes out of the sensing station and the machine adds algebraically the quantity of stock as represented by perforations therein to the register that the item cards control, and the register will then indicate the quantity of that particular type of stock which is on hand. Without stopping, the file card continues through a second sensing station which sets up in a punching mechanism all information which is inscribed in the card except that representing the quantity of stock, and si-' multaneously the register mechanism sets up in the punching mechanism the quantity representing the balance of stock on hand, and a new file card is withdrawn from a third magazine and punched in accordance with the information taken from the register and the superseded file card; Those file cards, which have not been superseded due to the fact that no item card was present in the item card magazine carrying a stock number corresponding to the-number on the file cards are filed in numerical order, and the new file card is interfiled in the final file magazine in proper numerical order with them. The superseded file card, after transmitting all of the information except the quantity of stock on hand to the perforating mechanism, is directed to a separate final magazine and maybe destroyed since the file of file cards will'represent accurately the quantity of stock of various classifications in numerical order, and the card receptacle containing the item cards which have passed through the machine will contain all of the posted item cards. I

The machine disclosed herein is also disclosed in the copending application of H. G. Johnstone and. J. C. Gates, Serial No. 643,016, filed November 17, 1932, wherein certain features, not claimed in mechanism 4 is shown (Fig. 1) as being enclosed in a housing, the details of the register being shown in Figs. 3 and 10. In order to simplify the disclosure, each of the four mechanisms mentioned above will be described as separate units, and the electrical'eircuits which control the operation thereof will be described in detail in connection with the discussion of the operation of the entire system.

The power supply for driving all of the mechanical units of the system is derived from a motor (not shown) suitably secured to the underside of a base plate I I on which the entire system is mounted. This base plate may be of any suitable type such as a metal table or bench, and the motor may be secured thereto in any known manner for driving a belt [2 which passes around a sheave I3 fixed to a main drive shaft l4.

Secured to the base H and extending upwardly therefrom are a pair of side plates I5 and I6 which support the file card sensing mechanism I and file card perforating mechanism 2, and a pair of side plates l1 and I8 which support the item card sensing mechanism. The main drive shaft I4 is journaled in the side plates I5 and I6 and through clutch. mechanisms and gear trains drives'all of the moving parts of the system. Positioned on the main drive shaft l4 between the side plates l5 and i6 is a clutch member l9 (Fig. 9) which is pinned to the shaft at 20 and rotates therewith for driving a cooperating clutch member 26 which is slidably keyed at 21 to a collar 28 formed integral with a gear 29 and is freely rotatable on the shaft M. The left end (Fig. 9) of the collar 28 abuts the right face of the clutch member l9 and is held in position thereagainst by a collar 30 pinned to the shaft and engaging the right face of the gear 29. A plurality of compression springs 3| normally urge the clutch member 26 to the left and into engagement with the teeth of the clutch member it, the clutch membe: 26 being held out of engagement with the clutch member l9 by a stop 32 positioned on the armature 3?. of an electromagnet 34 mounted upon the upper surface of the base plate i l. The stop member 32 is adapt ed to engage one of three camming slots 35 formed in the peripheral surface of the clutch member 26 when the magnet 34 is deenergized to cam the clutch member 26 out of engagement with the clutch member I 9 and stop the rotation of the gear 29. When the electromagnet 34 is energized momentarily, the armature 33 will be drawn downward (Fig. 9) to withdraw the stop member 32 from the camming slot 35 thereby to permit the compression springs 3| to force the clutch member 26 to the left into engagement with the clutch member l9, and as soon as the electromagnet is deenergized the stop member will be permitted to move into engagement with the peripheral surface of the clutch member 26, on which surface the stop member will ride until it strikes one of the camming slots 35 whereupon it will be forced into the slot and will cam the I clutch member 26 to the right out of engagement with the clutch member l9.

to an upright bracket 46 monntedupon the base II. The gear '46 has pinned eccentrically to the right side thereof one end of a link 43, the other end of which is pivoted intermediate the ends of a lever 50 (Fig. 4) mounted to rock upon a shaft jection 55 of a card feed finger 56 reciprocably st, and as (Fig.

mounted in the bottom of the file card magazine 53 and provided with a card engaging portion 51. Upon rotation of the gear 29, it will be apparent that the gear 46 will be rotated about the stud 41, and since the link 49 is pivoted to the gear 46 eccentrically thereof, an oscillating motion will be imparted to the lever 56 which will in turn cause thecard feed finger 56 to be advanced to the right (Fig. 4) and retracted to the position shown, once'for each complete revolution of the gear 66.

The card engaging portion 57 of the card feed finger 56 is adapted to engage the bottom one of a plurality of cards 66 stacked in the magazine toadvance the card to the right (Fig. 4) through a slot 6'8, the vertical dimensions of which may be accurate'y regulated by means of a barrier 68 adjustably secured to the right side (Fig. 4) of the file card magazine 53 for permitting only one card at a time to be moved from. the bottom of the stack in the magazine. Thus, upon momentary operation of the electromagnet 35 the gear 25 will be'driven through a part of a revolution to rotate the gear 56 through a complete revolution to cause a reciprocation of a card feed finger 56 to advance the card from the bottom of the stack in the magazine out through the 'slot 51. It is to be noted at this time that the card is advanced with its nine hole position first. The card, upon being advanced through the slot 6'8, will be moved into engagement with cooperating card feed rollers I and I5 (Fig. 4) which will advance the card along a predetermined path as will now be described in detail.

The main drive shaft It, as will be apparent by reference to Fig. 9, has secured thereto a beveled gear it which meshes with a beveled gear it secured to a vertically extending shaft I9 journaled in a bracket 65 secured to the side plate I5. The upper end of the shaft it carries a beveled gear 8i which in turn meshes with a beveled gear 52 mounted upon a horizontally extending shaft 63. The horizontally extending shaft 53 (Fig. l) is mounted in brackets extending outwardly from a n supporting bracket 55 mounted on the side plate I5 and extends substantially the entire length of the side plate I5. This shaft 55 has secured to it a plurality of beveled gears 85, 56, 5?, 68, 6t, 55, 5i, 62, 53, l) which mesh with and drive continuously beveled gears 95 to I56, inclusive, respectively. The gears 96 to I66, inclusive, are mounted upon shafts Iiil to- I If, inclusive, (Figs. 4 and 5) respective'y, journaled in the bracket '63 secured to the side plate I5 and a corresponding bracket III! secured to the side plate I5.

The card feed roller I5 (Fig. 4) is mounted on the shaft WI andcard feed rollers I25 to I36,

inclusive,,(Figs. 4 and 5) are mounted on the shafts I68 to ill, inclusive, resmctively. The card feed rollers I5, I27, I26, I25, I36, I59, and I36 have cooperating therewith the card feed roller 16 and upper card feed rollers M5136, I31, I38, I35, and I55, respectively, which are mounted on shafts I45, 6,447; 6, I63, I50, and I5I,

inclusive, extendingbetween the brackets 84 and H8. These shafts I45 to I5I are all supported in the same manner and therefore the means for supporting only one of them will be described in detail. For example, the shaft I46 (Fig. 4) is journaled in a journal block I52 mounted in a slot I53 formed in the bracket II8. A coil spring I54 urges the block I52 downwardly and tends to force the upper cardfeed roller I35 into engagement with the lower card feed roller I21. A similar construction isprovided in the bracket 84 and the shaft I46 extends into Journal blocks mounted in the brackets 84 and IIII.- The remainder of the upper card feed rollers which cooperate with the lower card feed rollers I25, I26, I32, and I33, will be described in detail hereinafter.

From the description of the apparatus up to this point it will be apparent that a card from the bottom of the stack of cards in theflle card magazine 53 will be picked up by thecard engaging portion 51 of the card feed finger 56, and advanced through the slot 61 in the magazine 53 and into engagement with the card feed rollers I5 and I6 which will advance the card until it encounters an obstruction in its path, as will be described hereinafter.

The file card sensing head 45 is reciprocated each time the shaft QI- makes one complete revolution since the shaft 4| carries at its ends a pair of eccentrics I6I (Figs. 4 and 9) which have cooperating therewith collars I62 (Figs. 4 and 9) having extending upwardly therefrom drive rods I 63. The upper ends of the drive rods I63 are pinned at I64 to the file card sensing head 45. The file card sensing head comprises a rectangular framework composed of end pieces I65 and I66, a cross member I61 and a cross bar I68 (Figs. 1, 4, and 9).. The end pieces I65 and-I66 therefrom apertured guide sleeves I66 and I'll],

respectively, through the apertures in which guide rods III and I72 extend, the guide rods being mounted upon and extending upwardly from extensions I13 and I'M formed integrally with the side plates I5 and I6, respectively.

Slidably mounted on the cross member I 61 and the cross bar I68 is a sensing pin supporting member H6 (Figs. 4 and 9) having althreaded aperture I'll adapted to be threadedly engaged by a positioning screw I78 journaled in the end .pieces I65 and I66 and provided at its right end (Fig. 9) with an actuating handle Ilt. As the description progresses, the purpose of theposltioning screw I18 and its actuating handle I I9 will become apparent.

Secured to the underside of the sensing pin supporting member I'I6 are a pair of blocks I80 and IBI (Fig. 4) to which is secured a plate I 62 of insulating material forming a part of a pin box designated generally by the numeral I83. The pin box I83 comprises a pair of side plates I 64 and I85 secured at their upper ends'to the underside of the plate I62 and having fixed to their lower ends a plate of insulating material I86.

Positioned in the pin box I63 (Figs. 4 and 9) with their ends extending beyond the plate I82 and the plate I86, are a plurality of sensing pins I50 having enlarged portions I5I for engaging the upper surface of the plate I86 and reduced portions I92 and I93 extending through apertures I94 and I95 in the plates I86 and I62, respectively. Coil springs I96 encircle the upper ends of the pins and engage the underside of the plate I82 and a shoulder formed by the enlarged portion I9I thereof for normally urging the pins downwardly.

In the particular machine chosen for illustration, there are provided 66 of these pins arranged in 6 columns of 11 each for cooperating with 6 metallic contact bars I98 of a group of 45 metallic contact bars set into a plate I99 of insulating material. The plate I99 of insulating material is mounted in the brackets 84 and H8 and has the 45 contact bars I98 positioned therein in 'such a manner as to lie directly under the 45 rows of hole positions in a statistical card. The pin box I83 may be shifted to the right or left (Fig. 9) by manipulating the actuating handle I I9 so as to associate the pin box with any 6 successive contact bars I98, one tum'displacing the pin box the space ofone card column to right or left.

The lower card feed rollers I25 and I28 (Fig. 4) extend through slots formed in the plate I99 and cooperate with upper card feed rollers 2H and 2I2 (Fig. 4), respectively, which are freely r0- tatable on the ends of bell crank levers 2I3 and 2I4, respectively, pivoted at 2I5 and 2I6 to the brackets 84 and H8 and having their upper ends urged towards each other by coil springs 2H and 2I8, respectively, for normally urging the rollers 2| I and 2I2 downwardly into engagement with the card feed rollers I25 and I26.

A slot 2I9 formed in the plate I99 and extending throughout the length of the plate is adapted to receive the end of a plunger 220 (Fig. 4) when there is no card in position under the file card sensing head 45. When a card is in position un der the sensing head the plunger 228 will engage the card and be moved upwardly to close a circuit between electrical contacts 22I and 222 suitably mounted on the plate I82 (Fig. 4).

Mounted to reciprocate with the sensing head 45 is a card stop 223 (Figs. 4 and 9) which is secured to the end pieces I65 and I66 of the file card sensing head, and upon reciprocation of the sensing head this card stop 223 will be moved downwardly with the sensing head in timed relation to the advancement of a card from the file card magazine 53 under the file card sensing head 45 and its lower end will be placed in the path of the card to stop it from advancing out of the sensing head. A card which has encountered the card stop 223 will be so positioned as to cause a. relative upward movement of the plunger 229 (Fig. 4) with respect to the file card sensing head 45 upon the head being moved downward to complete a circuit between the contacts HI and 222. The trailing end (Fig. 4) of a card which has encountered the card stop 228 will lie to the right of the extreme left hand row of sensing pins I93 so that these pins will engage the contact bars I98 with which the sensing head 45 is associated with each downward operation of the sensing head 45. The right hand rows of sensing pins (Fig. 4) having pins which encounter apertures in the card thereunder will pass those pins through the card and make contact with the contact bars I98 with which they are associated to complete an electrical circuit, as will be described in detail hereinafter.

The next time the electromagnet 34 is operated, the card feed finger 51 will select a new card from the bottom of the file card magazine and advance it toward the file card sensing head 45, and the file card sensing head'in moving upwardly will carry with it the card stop 223 moving it out of the path of the card under the sensing head, which card will then be advanced by Pinned to the upper v258 upon oscillation of the lever the card feed rollers which are rotating continuously and the new file card will be positioned under the sensing head. The path of the file card. after it leaves the file card sensing head, will be determined by the circuits completed by the mechanism positioned in the file card sensing head, two alternate paths being provided for the card depending upon whether the card has perforated therein in a position underthe sensing pins a number which corresponds to a number in a similar area' of an item cardwhich is being simultaneously sensed or whether a number which does not correspond to the number in the sensed'area of the item card, and these paths remain open until a card is advanced past the point where the paths divide.

The item card sensing mechanism 3 as shown in Figs. 2, 6, and 7,-is substantially the same as the file card sensing mechanism I and is driven from the main drive shaft I4 which has, as will be seen by reference to Fig. 7, positioned thereon between the side plates IT and I8 a clutch mechanism 2 for connecting item card feeding and sensing mechanisms to the shaft I4 at predetermined intervals. It will be noted at this time that the item feeding and sensing operations are carried on at one-third the speed of the sensing and feeding of the file cards since obviously there will be a larger number of file cards than item cards to be compared. This difierence of speed in the feeding of cards will be apparent by comparing Figs. 4 and 7, particularly the gearing for picking cards from the magazine and sensing them.

It was mentioned in connection with the feeding and sensing of the file cards that there were provided, in the movable clutch member 28, three camming slots into which the stop 32 might be moved. The construction of clutch 24I is the same as the clutch which operates the file card feeding and sensing mechanisms except that there is provided in the periphery of the movable clutch member only one camming slot for stopping the rotation of the clutch, and the gear ratio arrangement provided for the item card sensing mechanism is such that for each rotation of the shaft.

I4 during which the faces of clutch 24I are engaged, one card will be sensed by the item card sensing station, whereas if the cards sensed by the file card sensing station do not correspond. to those sensed in the item card sensing station, three cards will be sent through the file card sensing station during one revolution of shaft I4.

The clutch 2 is operated by an electromagnet 242 (Fig. 7) having an armature 243 carrying a stop member 244 which, upon energization of the electromagnet 242, permits the clutch 2 to drive a gear 245 through one complete revolution. Freely rotatable upon a stud shaft 248 mounted on a bracket 240 extending upwardly from the base plate I I, is a gear 241 which meshes with the gear 245, and has pivoted eccentrically thereon one end of a link 248. The other end of the link 248 is pivoted intermediate the ends of a lever 249 which in turn is oscillatable upon a shaft 250 mounted in the lower portion of side plates 25I and 252 of an item card magazine 253. end of the lever 249 is a link 254 connected to a depending portion 255 of an item card feed finger 256 which is adapted to engage the lowermost card of a stack of cards 257 positioned in the magazine 253 and advance it, with the nine hole position first, through a slot 249 due to th rotation of the gear 241.

After an item card 257 has been advanced aoeaeeo through the slot 253, it will he engaged by a chain the numeral 239. The card feed rollers for advancing the item cards are driven from the main shaft ill by the following mechanism. Secured to the side plate 93 is a journal bloclr Edi (Fig. 7) in which there is positioned ashaft 232 having a beveled gear 263 formed on the lower end thereof and meshing with a beveled. gear 233 East to the shaft id. The upper end oi the shaft 232 carries a beveled gear 265 which meshes with a beveled gear 233 pinned to a horizontally extending drive shaft 23? (Figs. 2 and 'l). The drive shaft 23? is joumaled in brackets 233 and 233 extending outwardly from a main supporting bracket lid secured tothe side plate it. Mounted upon the drive shaft 26! are a plurality of beveled gears Eli, 212, 213, 233, 235 and'a spiral gear 213 (Fig. 2-) The beveled gears 2' to 233, inclusive, mesh with beveled gears 21?, 213, 213, 233, and 2st, inclusive, respectively, and the spiral gear 216 meshes with another spiral gear 333. The beveled gears ill, 23%, 239, 233, and 33B are mounted upon shafts 282, 283, 23 3, 235 and 236, (Fig. 7), which have fixed thereto lower card feed rollers 237, 283, 239, 233, and 236, respectively, and the spiral gear 333 is pinned to a pair of drums 232 rotatable about a shaft 233 fixed in the main supporting bracket Elli and a bracket so: which is secured to the side plate ll. The shafts 232 to 295 are journaled in the main supporting bracket 21d and the bracket SW.

The card feed rollers just described are, a pointed out hereinbefore, constantly driven and. cooperate with upper card feed rollers to bede scribed in detail hereinafter, which hold the card firmly in position between the sets of rollers for advancing it. v

Theshait 233 (Fig. 7) has pinned thereto cams 296 for cooperating with cam levers 295 having card gripping fingers 235 extending through the periphery of the drums 232. The com levers 235 are urged into engagement with the cam 23% by coil springs 231 and are pivoted to the sides of the drums 232 at 298. This last described structure is the conventional type of card pickup drum for depositing cards in a cardreceptacle 333 of the usual type. Shaft 293 and cam 33% do not move, but the card gripping'fingers 293 and the drums 232 are moved in timed relation to the advancement of cards thereto so that one of the card gripping fingers 296 associated with each drum 232 will be cammed away from the periphery of the drum and will be in a position to receive a card advanced thereto and clamp it against the periphery of the drum for depositing it in the card receptacle 299 as the drum rotates in a clockwise direction (Fig, '7)

The item card sensing head 239 (Figs. 2, 6, and

'7) is an exact duplicate of the his card sensing head 35 and is reciprocated by means of eccentrics 3H mounted upon a shaft 363 having secured thereto a gear 3l3 which meshes with the gear 265 and is driven thereby. It will be apparent on each rotation of the shaft M2 9. complete reciprocation of the item card sensing head 259 will take place; that is, it will be moved upwardly away from a card which has been advanced thereunder and down'into engagement with a second card which has been advanced from the magazine by the card feeding mechanism. The gear 3l3 will of course be driven in synchronism with the gear 241 since both of them mesh gage the item card sensing head 253 from a card positioned thereunder to permit it to be withdrawn from under the item card sensing head by the card feed rollers and the item card sensing head will then he moved downwardly to engage the card just advanced from the magazine 353.

The item card sensing head reciprocating mechanism includes eccentric collars 3l6 (Figs. 6 and 7) which cooperate with the eccentrics 3H and have extending upwardly therefrom drive rods 3H. The upper end of the drive rods 3 are pinned at Me to the item card sensing head 23%. Like the file card sensing head, the item, card sensing head comprises a rectangular framework composed of end pieces 3 i 3 and .320, a. cross member 32B, and a cross bar 322 (Figs. 2, 6, and 7). The end pieces M3 and 323 have secured thereto sleeves 333 and 324 (Fig. 2), respectively, through the apertures of which guide rods 325 and 323 extend, the guide rods being mounted upon and extending upwardly from extensionssimilar to those shown at I13 and N4 of the file card sensing head, but formed integrally with the side plates l3 and II, respectively.

Slidably mounted on the cross member 32! and the cross bar 323 is a sensing pin supporting member 333 having a threaded aperture 321 adapted to be threadedly engaged by a positioning screw 328 journaled in the end pieces 3 l9 and 333 and provided with an actuating handle 323. The purpose of the positioning screw 338 and its cooperating parts will become apparent as the description progresses.

Secured to the underside of the sensing pin supporting member 333 are a pair of blocks 333 and 33d (Figs. 6 and 7) to, which is secured a plate 33?: of insulating material forming apart of a pin box designated generally by the numeral 336. The pin box 336 includes a pair of side plates 33! and 333 (Figs. 6 and '7)- secured at their upper ends to the underside of theplate 335 and having fixed to their lower ends a plate of insulating material 339.

In the pin box 336 there are positioned a plurality of sensing pins 343 having their ends extending beyond the plates 335 and 333 and being provided with enlarged portions 343, the lower ends of which engage the plate 339 and the upper ends of which engage compression springs345 surrounding the pin and in engagement with the plate 335. The compression springs 345 normally tend to maintain the pins 343 in their lowermost position with the enlarged portions 344 engaging the upper surface of the plate 333.

As in the idle card sensing head there are 66 of these pins provided, arranged in columns of 11 each, for cooperating with any '6 successive metallic contact'bars 343 of a group of metallic contact bars set into a plate 341 of insulating material mounted similarly to the insulating plate containing the metallic contact bars I93 of space.

Upper card feed rollers 35!, 352, 353, 354, 355, and 353 (Figs. 6 and '1) are associated with the 230 lower card feed rollers 231, 238. 239 and and serve the same purpose in the item card sensing position as do the rollers 16, 2! I, 2i2, i35, 15, I25, I26, and I21 in the file card sensing station; that is, they tend to advance a card through the item card sensing station, the lower rollers being constantly driven and the upper rollers being free to rotate with the lower rollers and being normally urged downwardly into engagement therewith for advancing a card through the item card sensing station.

A pair of contacts 536i and362 (Figs. 6 and 7) are secured to the pin box in the item card sensing head'and operate in'the same manner as do the contacts 219i and 222 in the file card sensing head, a circuit being completed between v the contacts when the item card sensing head 259 is moved downwardly and finds a card positioned thereunder. A card stop 363 similar to the card stop 223 of the file card sensing head is provided in the item card sensing head for stopping a card under the item card sensing head each time the head reciprocates. From the foregoing description of the item-card sensing mechanism it will be apparent that it operates in exactly the same manner as does the file card sensing head, there being this exception, however, that due to the gear ratio for driving the two sensing heads from the main drive shaft 15, the item cards will be sensed at one-third the speed of the file cards since, as will be obvious, a file card must be found to correspond with each item card in order to render the system operative and therefore the file cards, unless a card is found which corresponds to the card positioned in the item card sensing head, operates at three times the speed of the item card sensing mechanism. This, however, is the only distinctionbetween the two mechanismsas regards the sensing of cards. The details of operation of these cooperating sensing mechanisms will be described hereinafter in conjunction with the operation of the machine as a whole.

If the item and file card sensing heads 259 and 45, respectively, have not found a file card which'corresponds' to the item card held in position under the item card sensing head 259 no circuits will havebeen completed by the sensing pins to energize the electromagnet 242 which was energized once when the machine was started to advance one card into and under the item card sensing head where it is held by the card stop 363. In this event, the file cards will follow a predetermined path until a file card is found which corresponds to the card held in the item card sensing station 259 whereupon that particular file card which agrees with the held item card will be deflected along a different path from the preceding cards.

While searching for a file card, the compared area of which agrees with the compared area of the card held in the item card sensing head 259 successive cards will be picked from the bottom of the file card magazine 53 (Figs. 1 and 4) and advanced under the file card sensing head 45 where they will be compared with the card held in the item card sensing head 259 (Figs. 2 and 7); and if the areas being compared do not agree, the file card sensing head 45 (Fig. 4) will move upwardly and permit the card feed rollers 2H, I25, 2I2, and I26 to advance the card to the card feed rollers I21 and I35 which will direct the card over the upper surfaces of a card deflector 3" to card feed rollers I28 and I36 (Fig. 4), I29 and I31 (Fig. 5) from which rollers the card will be dropped upon a shiftable plate 312 and permitted to descend into a file card reto hold the file card in the file card sensing head 95 until an item card is found by the item card sensing head 259, the compared area of which does not correspond with the compared area of the file card, whereupon the file card sensing mechanism will be operated and the card deflector 311 will be raised to direct the file card downwardly into engagement with card feed rollers 311 and 318 (Fig. 4). When this occurs, the card deflector 311 will be moved to the position shown in Fig. 4 and the shiftable plate 312 (Fig. 5) will be raised and held in its raised position until a new file card is perforated and sent to the receptacle 313. The shiftable plate 312 will thus hold all of the file cards advanced thereto'while the perforating mechanism is perforating a new card and until the new cardis advanced to the receptacle 313, at which time it will be permitted to drop and discharge the cards which it held into the receptacle 313 in their proper order on top of the newly perforated card. The mechanism for operating the shiftable plate will be described in detail in conjunction with the description of the circuits for controlling the system.

The card deflector 31I comprises a C-shaped member 385 (Fig. 4) hinged to the shaft III and having extending upwardly from its horizontal portion an arm 386 to which and to the bracket IE8 a contractile spring 381 is secured for normally urging the horizontal portion of the C- shaped member 385 into engagement with a stop member 388 so that cards being passed through the file card sensing head will normally be directed to the receptacle 313 (Fig. 5). However, upon completion of the circuits just mentioned, an electromagnet 389 will be energized and through a link 398 interconnecting its solenoid 39I and the arm 386 will tilt the C-shaped member 385 upwardly to deflect the next card coming from the file card sensing head downwardly into engagement with the rollers 311 and 318.

Beneath the card feed roller 311 are card feed rollers 319,392, 393, and 394 and beneath the card feed roller 318 are card feed rollers 395, 396, and 391 for directing a card advanced thereto downwardly to a pair of card picker drums 398 (Fig. 4), which deposit the cards in a receptacle (not shown) positioned beneath the drums 398. The card picker drums 398 and their associated receptacle are of the same construction as the card picker drums 292 and the receptacle 299 described in connection with the item card sensing head card feeding system and a detailed description thereof is not believed to be necessary.

The card feed rollers 318, 395, 396, and 391 (Fig. 4), are mounted upon shafts 485, 486, 481, and'488, respectively, and are positively driven, the shafts 485 to 488, inclusive, being journaled in the side plates I5 and I 6. Fixed to shafts 485, 486, 481, and 488 (Fig. 15) are worm gears 489, 8, 4| I, and 2 which mesh with worm gears 4 I3, M4, M5, and M6, respectively, fixed to a shaft 1 journaled in brackets M8 and 4| 9 secured to the side plate I5 and carrying at its upper end a beveled gear 428 meshing with a beveled gear MI aosaeeo pinned to the shalt 33. The drum set is mounted upon a shaft 322 also iournaled in the side plates and it, and is driven by a worm B23 mounted upon the nuclei the shaft M1 and meshing. with a worm gear 624: secured to the shaft 622.

The card-feed rollers 317, 319, 393, and 3% (Fig. 4) are not positively driven and serve to maintain the card in operative relation with the driven card feed rollers 318, 335, 396, and 897. The card feed rollers 819, 382, and 896 serve to complete electrical circuits due to the operation thereby of pairs of contacts 388 and 3%, 382 and 2-383, lhl and 632, 6th, 3533, and $36, when a card is passed under the rollers, contact between contacts 38d and sea and between talland sec being caused by a cardengaging roller 3%, contact between contacts dill and @352 being caused by a card engaging roller i392, and contact between contacts 6th, 683, and 33% being caused by a card engaging roller 3%. This is accomplished by mounting the rollers 379, 392, and 39s on arms of bell cranks 3%, 885, and 836, respectively, pivoted on the shafts of the card feed rollers ell and 8% and normally urged toward the driven rollers by springs its, 63W, and 438, respectively, pins 3%, see, and 36K] being provided by the horizontally est/ending arms of the bell cranks 386,

36, and 336, respectively, for operating the contncts.

Positioned in horizontal alignment with. the card feed rollers 395 and 391 are a series of brushes 66B and 4362, each series containing in detail in connection with the description of the circuit connections for the entire machine.

The just clescribed'sensing brushes MI and M2 and card feed rollers 395 and 397 (Fig. i) operate various electrical apparatus in. cooperation with a sensing drum s63 (Fig. 7) and a row of 45 brushes sec (Figs; 2 and 7) in the item card mechanism, to control the electrical circuits when.

cards which have been compared by the file and item card sensing heads have been found to agree, and are moved past the brushes. Only those brushes to l M2 or 6% which will engage the cards in the area wherein there is perforated data representing amounts to be computed are connected in the circuit. The means for interconnecting the brushes with the circuit is not shown since any known means may be used and in the circuit diagram (Fig. 14) only seven of each set of brushes are shown and these are shown as permanently connected.

In the item card sensing mechanism adjacent the sensing drum M3 and its associated brushes 3% (Fig. 7) there are provided a plurality of card actuated contacts 555, M6, M1, M8, M9, and the which are adapted to be operated by a card in its passage to-the sens'ng drum. Two card rollers dbl and $52 mounted on bell crank levers 453 and use, respectively, engage the card in its passage to the sensing drum 3 and rock their respective bell cranks about a common pivot 455 mounted on the bracket 210'. The bell crank 55 will be actuated first and will, through its upwardly extending arm, cause the contact M8 to engage the contact 550 to complete an electrical circuit between them for a reason which will be apparent as the description progresses. In a. like manner, the card at approximately the time it These brushes engages fine sensing drum 3 3? will actuate the bell crank see and move the contacts sis andtill into engagement with the contacts 556 and 7 V t cos, respectively.

Each time in the operation of the mechanism thus far described that a file card has been found, the compared area of which agrees with the comparedarea of the item card, an addition to or a withdrawal from stock is indicated and a new file card must be prepared to replace the file card which isthus superseded. The new file card to be prepared must indicate the algebraicsum of the amount of stock on hand as represented by the old file card and the amount of stock. added to or withdrawn frorn the supply. The perforating mechanism indicated generally by the numeral 2 will prepare a new card under control of the electrical circuits which in turn are controlled by the file and item card sensing mechanisms and the sensing drums and brushes heretofore mentioned, in cooperation with the card operated contacts heretofore described.

The file card. perforating mechanism 2 will now be described in detail: Positioned at the extreme right end of the brackets 8t and H8 (Pg. 1) is a blanls card magazine M5 for holding a simply of imperfcrate cards did from which a card will lie-drawn at predetermined intervals as controlled by the operation of the file and item card vsensing mechanisms. The various parts oi the file card perforating mechanism are actuated in synchronism with the operation of the file and item card sensing mechanisms and.

receive their actuating force from the main drive shaft is through an auxiliary drive shaft 411 (Fig. i) journaled in brackets 618 and its mounted on'the base plate ii. The shaft ill at its left end carries a. beveled gear- 689 which meshes with a beveled gear tti secured to the shaft it, and the shaft d'l'l carries at its right end a second beveled gear $82 meshing with a beveled gear 483 mounted upon a shaft 686 journaled in the side plates 85 and it (Figs. 1, 8, and 11).

Referring now particularly to Figs. 1, 5, 8, and 11, the shaft can has fixed thereto intermediate its ends a driving clutch member .185 (Fig. 8) and has rotatably mounted thereon a. gear 486 to which there is attached a movable clutch member d'l adapted to be driven by the clutch member 5% through one revolution under control of an electromagnet e88 mounted on the base plate i i and having its armature Q89 adapted to enter a slot are in the clutch member Ni.

This single revolution clutch which will be reout of engagement with the driving clutch memher 485 by a stop M2 mounted on the armature 689 and adapted to engage the slot s90 of the clutch member dbl. Meshing with the gear 886 is a gear 5M (Figs. 5 and 8) mounted upon a shaft 592 journaled in the side plates i5 and I6 and a gear 5% rotatable on a stud shaft 504 mounted on a bracket 505 which in turn s mounted upon the base plate H. There is pinned eccentrically of the gear 503 one end of a link 506, the other end of which is pinned to a rocker arm 50'! pivoted to the side plates l5 and H5. The upper end of the rocker arm 50? has a link 508 pivotally secured thereto which is also pivoted to a depending portion 588 of a card picker finger 5H) slidably mounted in the bottom of the magazine 415 and operable similarly to the card picker fingers of the item and file card magazines.

It will be apparent that each time the gear 388 moves through one complete revolution, the gear 583 will "also pass through one complete revolution, and will actuate the card picker finger 5m to advance a card 815 from the bottom of the magazine 815 to the feed rolls E38 and ltd which will further advance the blank card into a perforator head indicated generally by the numeral 5! l (Figs. 5, 8, and 11).

Each time a card is advanced to the perforator head 5H the head will be reciprocated through the operation of the shaft 582 which will be rotated through one revolution due to its interconnection with the shaft 488 by means of the clutch and the gears 485 and 58!. Fixed to the outer ends of the shaft 582 are a pair of cams M5 and 515 (Figs. 8 and 11) provided with cam grooves 5H and 5l8, respectively, in which I being moved by the cams 5l5 and M5 the ram 525 will be reciprocated on its guide pins 528 and 529.

The central portion (Figs. 5 and 8) of the ram 525 is formed in two sections; a driving plate 548 and a stripper plate 54E. The driving plate 548 has formed on the underside thereof a depending portion 538 slotted as shown at 539, there being 45 slots in the portion 538 which extend from the front to the back thereof (Fig. 8)

In the stripper plate there are provided a plurality of apertures 542, 450 in number, which are arranged in 45 columns of 10 apertures each, and in each of which there is slidably suspended a perforating pin 543 having a pin 544 therein which normally rests upon the upper surface of the stripper plate 54!.

Positioned directly below the ram 525 and mounted on the brackets 84 and H8 (Fig. 8) is a perforating pin guide box 545 comprising a top guide plate 546, a lower guide plate 541, and side plates 548 and 549. The guide plates 546 and 541 each have 450 apertures therein in direct alignment with the apertures in the stripper plate 541 and serve to guide the perforating pins 543 when they are actuated. The lower guide plate 541 is spaced upwardly slightly from the bottom edge of the side plates 548 and 549 to permit the passage of a card between it and a die plate 558 secured to the lower surfaces of the side plates 548 and 549, which die plate is provided with apertures in alignment with the apertures in the stripper plate 54! and r the guide plates 546 and 541 so that if a card is in position in the perforator head 5| I and one or several of the perforating pins are driven downwardly by the ram 525 in the manner to be described hereinafter, they will perforate a hole or holes in the card.

Upper card feed rollers 55! and 552 (Figs. 5 and 8) are mounted on horizontally extending arms 553 and 554 of bell crank levers 555 and 558, pivoted to the side plates 548 and 549 at 551 and 558', respectively. Vertically extending arms of the bell crank levers 555 and 555 are normally urged toward the center of the perforator head 5 (Fig. 5) by contractile springs 5'58 and 588. The card feed rollers 55! and 552 cooperate with the positively driven card feed rollers I33 and I32, respectively, and will tend to advance a card which has been directed thereto by the card feed rollers I34 and M8 through the perforator head 5! l. However, there is secured to the ram 525 at its left side (Fig. 5) a card stop 58l which, when the ram is moved downwardly will be interposed in the path of the card and will prevent the card from being ad-- vanced out of the head until the ram is moved upwardly at the completion of a' punch stroke, a portion of the card stop 58! being adapted to be moved into the path of the card between the die plate 558 and the lower guide plate 541. When the ram 525 moves upwardly carrying with it the card stop 55l, a card which has been perforated will be advanced by the card rollers to the left (Fig. 5) and into engagement with a deflecting member 562 into the receptacle 313, the plate 312 always being held in the position shown by the dotted lines when a card is moved from under the, perforator 5! I.

The selection of perforating pins for actuation by the ram 525 is accomplished by providing a selector bar 51! for each of the 45 columns of perforating pins and by providing mechanism for selectively advancing this selector bar through predetermined distances to select a pin for actuation. The selection of perforating pins for actuation is determined and controlled by the sensing brushes and rollers provided in the file card sensing station and the register 5, the amount of advancement of the selector bar determining which particular pin in the column of 18 pins associated with that particular bar is to be actuated.

Secured to the shaft 582 adjacent. the side wall I6 is a cam 512 provided with a cam groove 513 in which is positioned a cam roller 514 (Figs. 5, 8, and 12) mounted on the end of a lever 515 pivotally mounted in the bracket H8. The end of the lever 515 away from the cam roller 514 is slotted as shown at 516 for receiving a pin 511 attached to a reciprocable rack 518 (Figs. 1 and 5) which is slidable in brackets 519 and 588.

The rack 518 meshes with a ear 58! mounted upon a, shaft 582 journaled in upwardly extending portions 583 and 584 of the, brackets 84 and H8. Secured to the shaft 582 is a segmental gear 585 into engagement with which a rack 586 formed on the end of each of the selector bars 51l may be moved for actuating the bars 51!. The selector bars 51! are each positioned in the slots 539 formed in the depending portion 538 of the driving plate 548 at their right ends and and are supported at their left ends on a cross bar 581 mounted in the upwardly extending portions 583 and 584 of the brackets 83 and H8,

a comb-like member 588 being secured to the ation with a predetermined perforating pin cross bar 5th accuses energized and armatures ass associated therewith will be attracted and their lower ends will move bell crank levers car in a counterclockwise direction about a common pivot sec. There is one bell cranh lever dbl provided for each electromagnet oi which there are 45 corresponding to the 45 selector oars El i Each bell crank lever carries at its lower extremity a selector bar ongaging pin see which will move the selector bar associated therewith into encasement with the segmental gear was for advancing it into'associsee. A comb shaped member out is provided to serve as a guide for the lower end oi the bell crank levers bill and is secured to the underside of the Each oi the bell crank levers is normally urged in a clockwise direction by a contractile spring till associated therewith which normally tends to maintain the bell crank lovers in the position shown in Fig. 5. However, upon momentary energization of any one of the electromagnets tilt its associated bell crank lever will be actuated and will move its associated selector bar into engagement with the segmental gear 5%. These electromagnets ass are enersized momentarily and at difierent times in the cycle of rotation of the segmental sear'ett in a counterclockwise direction, and the time or energization oi the magnets as pointed out hereinberore determines the distance through which the selector bar .t'ii will be advanced to the right (Fig. 5) thereby determining which one oi the perforating pins was associated with that particular bar will be actuated.

The under surfaces of the selector-bars 5H have depending portions set which tend to maintain segmental near sea from the time of the electromagnets bob until the segmental gear 5% has rotated in a clockwise direction to return the bars to their normal position as shown of energlzation in Fig. 5, at which time they .will be camrned out plate M5 extending upwardly from the base plate ll. Meshing with the idler gear ii 32 is a driving gear tit mounted upon a the bracket 6 i t and a supporting arm tit extendmg upwardly from a horizontal portion of the bracket etc. A driving clutch member $22 is secured to the right end (Fig. 3) of the shaft Ell and cooperates with a driven clutch member s23 mounted upon a shaft era. journaled in the register end plate M5 and a second end plate are between which there are a plurality of intermediateplates 525, Ml, 828, bit, 639, and bill on which are mounted the diflerent units of the register. The clutch, of which the driving clutch member 522 and driven clutch member are form a part, is of the single revolution type and of the same construction as the other single revolution clutches before in connection with the mechanism for driving the item a d file cardsensing mechanisms and the file card perforating mechanism. The clutch is controlled by an electromagnet cs2 3) of the shaft ms the selector bars in engagement with the formed of copper The shalt 62 t is described hereinwhich, upon momentary energisatlon, the driving and driven clutch members to engage and will automatically cam the driven clutch member 523 out of engagement with the th iving clutch member $22 at the completion or a single revolution of the shaft 526. The right end (Fl e carries a gear with an idler gear Edi mounted upon the end plate $25 and the idler gear 54! in turn meshes with a gear cs2 secured to a shaft M3 which eittends through and is'joumaled in the interme diate plates tit and tit and the end plates Sit and 62b.

The shaft etc has rotatabiy mounted thereon a plurality of register contact disks M l, 655, 6%, tel, etc, 5%, and SW representing the units (U) register, tens (T) register, hundredsfli) resister, thousands (TH) register, ten thousands hundred thousands (HT) resister and millions (M) register, respectively. The contact disks M5 to btt are exactly the same in construction and have associated therewith contact brushes in the iollowins order: Contact disk ass has associated therewith brushes $60, chi, etc, contact disk 6455 has associated therewith brushes sec, 686, 655, contact disk 5% has associated therewith brushes etc, 561, seasontact dish tel has associated therewith brushes 555, bit, and. 6', contact dish too has associated 812, bit, tit, contact disk $59 will, and contact disk see has associated therewith brushes t'it, Bit, and sec, respectively. since the, construction and arrangement of brushes and contact disks are exactly the same ior all of the registers from units (U) to millions (M), inclusive, only the contact disk can associated with the millions (M) register will be described in detail. The disk 8% comprises a base are of insulating material having secured to the opposits surfaces thereof irregularly shaped plates lit? and i588 (Figs. 16 and 1'2). The plates 681 and tea are attached to the disk the and to each other by copper rivets 38d and the plates are also or a similar good electrical conductor and serve to complete circuits between the brushes Mt, M9, and but, selectively, de

pending upon the position of the disks with respect to the brushes. As shown in-Figs. l6 and 17, the contact disk cm is in its normal position and it will be apparent that in its normal posi= tion or in any other rotative position the brush old will engage the copper plate dbl, and in the normal position the brush 5% will be engaging the non-conducting disk ace throughe cutout sec in the plate 63?. However, in every position other than normal the brush sac will engage the conducting plate tdl pleted from the brush 519 through the plate 681 to the brush 680, the purpose of which will become apparent as the description progresses. The contact disk 65!) is divided into 10 equal portions 0 to 9, and it will be noted by reference to Fig. 16 that the brushes tit and ttll will be interconnected through the plate cm at all rotative Mil meshin so therewith brushes bib, 51%, and v and the circuit will be com- 1 positions except normal or zero positions, and by upon the 

